Sigma Delta ADC supports wide band input

Hi,

My application requires a Sigma Delta ADC, however, the sampling rate requires up to 70 MHz.

I tried to look around the website but I cannot find the Sigma Delta ADC which can support these bandwidth input.

Could you please give me some suggestions?

Thank you

NGPhuc

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  • 0
    •  Analog Employees 
    on Mar 20, 2019 2:31 PM over 1 year ago

    Hello,

    Most of the sigma delta ADC's (like AD9260)  are low pass hence they support signal bandwidths starting at DC to some upper limit (like 1.2 MHz with an oversampling ratio of 8 with FCLK=20SMSPS).

    I would suggesting using a standard pipeline ADC that can sample at 70 MSPS or beyond (AD9650, AD9652).  

Reply
  • 0
    •  Analog Employees 
    on Mar 20, 2019 2:31 PM over 1 year ago

    Hello,

    Most of the sigma delta ADC's (like AD9260)  are low pass hence they support signal bandwidths starting at DC to some upper limit (like 1.2 MHz with an oversampling ratio of 8 with FCLK=20SMSPS).

    I would suggesting using a standard pipeline ADC that can sample at 70 MSPS or beyond (AD9650, AD9652).  

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